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Toughening epoxy resins with solid acrylonitrile-butadiene rubber

Frounchi, M ; Sharif University of Technology | 2000

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  1. Type of Document: Article
  2. DOI: 10.1002/(SICI)1097-0126(200002)49:2<163::AID-PI321>3.0.CO;2-X
  3. Publisher: 2000
  4. Abstract:
  5. The feasibility of using solid acrylonitrile-butadiene rubbers (NBR) with 19 and 33% w/w acrylonitrile to toughen diglycidyl ether of bisphenol A (DGEBA) epoxy resins has been investigated. Thermal analysis experiments revealed a two-phase morphology of these rubber-modified epoxies. However, the higher content of acrylonitrile in the rubber caused better compatibility between NBR and the epoxy resin. The rubber with 33% acrylonitrile was found to be an effective toughening agent for DGEBA epoxy resins. Fracture surface studies and also the high tensile strength of crosslinked high molecular weight NBR suggest that the toughening effect should arise from rubber bridging and tearing mechanisms. © 2000 Society of Chemical Industry
  6. Keywords:
  7. DGEBA ; Epoxy ; NBR ; Solid rubber ; Toughening
  8. Source: Polymer International ; Volume 49, Issue 2 , 2000 , Pages 163-169 ; 09598103 (ISSN)
  9. URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/%28SICI%291097-0126%28200002%2949%3A2%3C163%3A%3AAID-PI321%3E3.0.CO%3B2-X